How to compress a PDF
- Choose or drop your PDF.
- The maximum size is already set to 100 KB and the method to “Maximum compression”; change them if you need something else.
- Click Compress.
- Download the compressed PDF.
What is it for?
A 100 KB limit is common on registration forms, job portals and online procedures. This tool tries lower and lower qualities until the PDF fits in 100 KB; to get that small it turns the pages into images.
Everything happens on your device, so your documents are never uploaded to a server.
Limits to keep in mind
- With “Maximum compression” the text becomes an image: it can no longer be selected, copied or searched.
- The smaller the target, the more image quality you lose.
- Password-protected PDFs can’t be processed: remove the protection first.
Frequently asked questions
How do I reduce a PDF to 100 KB?
Drop the PDF and click Compress: the maximum size is already set to 100 KB. The tool looks for the best quality that stays under that size.
Is my PDF uploaded to a server?
No. Compression happens in your browser, on your device. Your document is not sent anywhere.
What if it does not reach 100 KB?
If it is still too big, choose “Maximum compression”, which turns every page into an image, or try a PDF with fewer pages.
Do I lose quality?
A little, because a smaller file needs more compression. The tool keeps the best quality that fits the requested size.